First of all I would like to thank the
SoundSeeder’s crew for such a great app. I really enjoy it, not only because I can scare my wife playing loud music from her phone when she doesn’t expect, but also because it really helps me to cast audio during particular outdoor events (this app makes easy what I have been doing for years with a huge effort).

Talking about the topic: I am planning to buy some loudspeakers and it would be grate if I could use them directly from the app (I mean seeing them in the available speakers list).
Is there any feature I should check before buying the loudspeakers, in order to buy compatible devices?
Is the app compatible with Chromecast built-in loudspeakers?

Thanks